3-D Plasmon Ruler Graphic (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption The 3-D plasmon ruler is constructed from five gold nanorods in which one nanorod (red) is placed perpendicular between two pairs of parallel nanorods (yellow and green). Credit courtesy of Paul Alivisatos research group, Berkeley, CA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.